How to check whether firewall is open between apigee and an on-premise server? is it possible to ping or telnet from apigee?

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Assuming you are using whitelisting and that's preventing validation from another system and also that simply creating a proxy for that target results in failure, I think you should probably raise a support request. Engineers should be able to verify for your org.

sarthak
Participant V

Hi @SaravanaM It is not possible to ping or telnet from Apigee. But there are other ways to troubleshoot any connectivity issue.

First make an simple passthrough API proxy.

Then open Trace and start it.

Now make an API call to the passthrough proxy.

Look for the error returned by the backend in Trace.

If you see the backend is taking too much time and the error you are getting is "connection timeout" then most likely the call is never reaching your backend.

But instead of connection timeout if you are receiving other errors then it might be because of some issues with the backend and not a connectivity issue.

If you need IP whitelisting the as Carlos mentioned please work with support to get the IPs of the Apigee instances.